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olchik [2.2K]
3 years ago
8

Use the activity series below to predict whether the following reactions will take place.

Chemistry
1 answer:
andrey2020 [161]3 years ago
5 0
First one is yes second one is no :)
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What is the balanced form of the equation C2H6 + O2→CO2+H2O?
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- 2C2H6 + 7O2→4CO2+6H2O

Explanation:

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What will happen to a salt water fish if placed in freshwater?
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Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen.
Lilit [14]

The Empirical formula of compound is C₁H₂O₁. The Molecular Formula of the compound is 4 (C₁H₂O₁).

<h3>What is Empirical Formula ?</h3>

Empirical formula is the simplest whole number ratio of atoms present in given compound.

Element   %   Atomic mass   Relative no. of atoms  Simplest whole ratio

C          40.6       12                   \frac{40.6}{12} = 3.3                        \frac{3.3}{3.3} = 1

H          5.1          1                      \frac{5.1}{1} = 5.1                          \frac{5.1}{3.1} = 2

O         54.2       16                    \frac{54.2}{16} = 3.3                        \frac{3.3}{3.3} = 1

The Empirical formula of compound is C₁H₂O₁ or CH₂O

<h3>How to find the Molecular formula of compound ?</h3>

Molecular formula = Empirical formula × n

n = \frac{\text{Molecular weight}}{\text{Empirical Formula weight}}

   = \frac{118.084}{30}

   = 4

Molecular formula = n × Empirical formula

                              = 4 (C₁H₂O₁)

Thus from the above conclusion we can say that The Empirical formula of compound is C₁H₂O₁. The Molecular Formula of the compound is 4 (C₁H₂O₁).

Learn more about the Empirical Formula here: brainly.com/question/1603500

#SPJ1

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2 years ago
Can you use mass and volume to predict whether an object will sink or float in water? Explain your thinking.​
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Yes. u can because its easy to tell if an item will sink or float usually by the weight or the width

Explanation:

8 0
3 years ago
6. Suppose you are going to measure the length of a pencil in centimeters.
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Their answers must be in two decimal places

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